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Archivum Mathematicum
Volume 50
Author: Bin-Asfour, Mona
Guediri, Mohammed; Bin-Asfour, Mona
:
Ricci-flat left-invariant Lorentzian metrics on 2-step nilpotent Lie groups
.
(English).
Archivum Mathematicum
,
vol. 50 (2014), issue 3
,
pp. 171-192
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